You can't make this stuff up.
Longish, best to follow the link. The pictures are worth it.
https://gizmodo.com/this-wifi-enabled-space-toilet-for-cats-turned-me-into-1847303337
"The Litter-Robot opts for a less mechanically complicated, if far
bulkier, solution.
It’s basically a giant plastic dome that you fill with almost any normal brand of
litter. The cat enters, does what it came for, and triggers a weight
sensor. Some
7-15 minutes later, depending on configuration, a gear activates and
rotates the
dome upside down, sifting the newly formed clumps out of the litter with a plastic
screen. The dirty bits fall into a drawer with a plastic liner and carbon filter for later
removal, then the dome reverses and moves the clean stuff back into place."
"The wifi-enabled Litter-Robot 3 Connect we tested is the more expensive
model
at $500 and can be paired to an app that makes it into a sort of smart
home device.
The app keeps users updated on how full the waste shelf is, lets them
cycle or
restart the unit, and keeps a graph of how often a cat enters. The last
feature is
surprisingly useful."
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